In this section, we are going to talk about some basic concepts that you really need to know about databases in general, SQL, and Oracle.
This is not intended to be a theoretical course, so I will keep theory to the minimum.
I know many people don’t like theory, so, In case you are feeling the temptation to skip this section… PLEASE, don’t do it, unless you already have a clear understanding of what a relational database is and how it is structured, and you are not new to Oracle.
This section is short, but it’s key.
Let’s begin!